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SUBSEQUENT EVENTS (Details Narrative) - Non Adjusting Event [Member]	1 Months Ended
	Aug. 26, 2021 CAD ($) shares
IfrsStatementLineItems [Line Items]
Equity method investment, shares owned | shares	358,996
Payment to acquire interest | $	$ 341,046
Ownership percentage	10.00%

X

- Definition

Equity method investment shares owned.

+ References

No definition available.

+ Details

Name:	WSCRF_EquityMethodInvestmentSharesOwned
Namespace Prefix:	WSCRF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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Namespace Prefix:	WSCRF_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Payment to acquire interest.

+ References

No definition available.

+ Details

Name:	WSCRF_PaymentToAcquireInterest
Namespace Prefix:	WSCRF_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2020-01-01
-Paragraph B64
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2020-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B
-URIDate 2020-01-01

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=WSCRF_NonAdjustingEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: